2. A researcher conducts a research study comparing two treatment conditions

and obtains 20 scores in each treatment. If the researcher used a repeated-measures design, then how many subjects participated in the research study?

a. 10

b. 20

c. 21

d. 40

3. For an experiment comparing two treatment conditions, an independent- measures design would obtain_____ score(s) for each subject and a repeated-measures design would obtain_____ score(s) for each subject. a. 1, 1 b. 1, 2 c. 2, 1